In this scenario, Company A is running TCP/IP and the Internetwork Packet Exchange™ (IPX™) protocol on the network. Company A wants to use Novell BorderManager as both an inbound and an outbound firewall. Company A wants to do the following:
Add a firewall to secure the network
Allow outbound and inbound Simple Mail Transfer Protocol (SMTP) e-mail
Allow outbound and inbound DNS information
Allow public users from the Internet to view only the Web server on the intranet
Allow internal users on the intranet to access the Internet
The following Novell BorderManager components are used to implement this scenario, as shown in Figure 6-1:
Packet filtering
Proxy Services Transparent HTTP proxy application
Access control
Figure 6-1 Inbound and Outbound Firewall
To implement Novell BorderManager as a firewall on the network, Company A must perform the following general sequence of steps:
Install Novell BorderManager and enable packet filtering on public interfaces during the installation.
For more information and for Novell BorderManager installation procedures, see Novell BorderManager 3.9 Installation Guide
Configure packet filtering.
Enable and configure the transparent proxy application on the Novell BorderManager server.
(Optional) Enable and configure the HTTP reverse, or acceleration, proxy to enhance performance.
(Optional) Enable and configure access control rules for the intranet users.
For more information on configuring proxy services and access rules, see Novell BorderManager 3.9 Administration Guide .